CVE-2026-3502 kev in the critical feed json
TrueConf Client Update Integrity Verification Bypass
published 2026-03-30 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-17162
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2026-04-02
- epss
- 5.8%
- EPSS 5.8% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code execution in the context of the updating process or user.
Patch / fix
cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- trueconf trueconf 8.5.3.884
Timeline
- Published
- CISA SSVC: exploitation active
- Added to CISA KEV
- CISA patch deadline
Known exploited
- Added
- 7 mo ago
- Patch by
- 2026-04-16 (6 mo ago)
- Ransomware
- Not known
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Vendor, product
- TrueConf, Client
- CISA name
- TrueConf Client Download of Code Without Integrity Check Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
5.85% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L |
Affected products
- TrueConf TrueConf Client
Classification
- Weakness
-
- CWE-494 Download of Code Without Integrity Check
References
-
trueconf.com
/blog/update/trueconf-8-5
product, release-notes
-
research.checkpoint.com
/2026/operation-truechaos-0-day-exploitation-against-southeast-asian-government-targets/
third-party-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3502
government-resource, us-government-resource
Sources
- CVE List CVE-2026-3502
- NVD CVE-2026-3502
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.